Certifications: ISO 9001:2015
Basic Blue 7 Powder
Category: Basic Dyes Powder
CI Number: 42595
Chemical Class: Triarylmethane Dye
Form: Powder
Classic Victoria Blue for Inks and Paper
Basic Blue 7, widely known as Victoria Blue R, is a classic triarylmethane dye that produces a brilliant, clean blue shade with a slight reddish undertone. It is valued for its high tinctorial strength and excellent solubility, making it a staple colorant in the ink and paper industries. While it has moderate fastness on textiles, its primary strength is its shade vibrancy and versatility in surface colouring applications.
Applications- Ink Formulation: A key component for producing bright blue and violet inks for printing and pens.
- Paper Colouring: Used for surface colouring and tinting of high-quality papers and boards.
- Textile Dyeing: Provides brilliant blue shades on silk, wool, and acrylic.
- Carbon Paper: Used in the manufacturing of carbon paper and typewriter ribbons.
Key Benefits
- Brilliant, clean blue shade.
- Very high tinctorial strength.
- Versatile for ink and paper applications.
- Good solubility in water and polar solvents.
Technical Highlights
- Common Name: Victoria Blue R
- Ionic Nature: Cationic
- Appearance: Dark Violet Crystalline Powder
Packaging & Availability
- Supplied in a standardized powder form.
- Standard Packing: 25 kg fibre drums.
- Customized packaging is available upon request.